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| 1 | Measurement of Neutron Capture Cross Section for ^(180)Hf | Chen Jinxiang Shi Zhaomin Tang Guoyou Zhang Guohui Institute of Heavy Ion Physics,Peking University,Beijing 100871Lu Hanlin Han Xiaogang Huang Xiaolong China Institute of Atomic Energy,P.O.Box 275(3),Beijing 102413 | 1997 | Chinese journal of nuclear physics1997，，2： | 3 |
| 2 | Alkylation of naphthalene with n-butene catalyzed by liquid coordination complexes and its lubricating properties显示文摘With the development of coal chemical industry,large amounts of naphthalene and n-butene are produced,and converting them into high value-added products through alkylation has gained particular importance and interest.In this work,liquid coordination complexes(LCCs)were used as acid catalysts for the first time in the naphthalene alkylation reaction under mild conditions to obtain multibutylnaphthalenes with high yield.Various reaction conditions were thoroughly investigated.The LCC consisting of urea and AlCl_(3) showed excellent catalytic performance under optimal reaction conditions,giving 100%conversion of naphthalene and 99.66%selectivity towards multi-butylnaphthalenes.Combining the catalyst properties and catalytic results,a plausible reaction mechanism was proposed.The lubricating properties of the synthesized products were investigated for their potential application as lubricating base oils.The synthesized multi-butylnaphthalenes showed comparable physicochemical properties and tribological performances as the commercial cycloalkyl base oil. | Chen Chen Qiong Tang Hong Xu Lei Liu Mingxing Tang Xuekuan Li Jinxiang Dong | 2021 | Chinese Journal of Chemical Engineering2021，34，11： | 2 |
| 3 | Tribological and rheological performance of lithium grease with poly-a-olefin and alkyl-tetralin as base oils显示文摘A new category of lithium greases was synthesized by using poly-a-olefin(PAO8) and alkyl-tetralin as base oil, where the alkyl-tetralins were synthesized by the alkylation of tetralin and olefins. The influence of thickener concentration, alkyl-tetralin content and type of blend oils on the rheological and tribological performance of lithium grease was investigated. The microstructures of soap fibers were measured to reveal the structure-property correlations. The concentration of thickener and alkyl-tetralin content obviously affect the lubricating performance of lithium grease, while the molecular structure of alkyltetralin has no obvious impact on their properties. It was found that alkyl-tetralin could significantly enhance the thickening ability of PAO8 base oils, and decrease the amount of thickeners by 1.5%(mass).Lithium greases prepared using 20%(mass) alkyl-tetralin as co-base oil exhibited high colloidal stability,excellent rheological behaviors and tribological properties. | Chen Chen Yujie Liu Qiong Tang Hong Xu Mingxing Tang Xuekuan Li Lei Liu Jinxiang Dong | 2023 | Chinese Journal of Chemical Engineering2023，56，4： | 1 |
| 4 | Conflicts classification and solving for collaborative feature modeling显示文摘 | Tang Min Chou Shangehing Dong Jinxiang | 2007 | Advanced Engineering Informatics2007，21，2： | 1 |
| 5 | Silencing JA hydroxylases in Nicotiana attenuata enhances jasmonic acid-isoleucine-mediated defenses against Spodoptera litura显示文摘Jasmonic acid(JA)plays important roles in plant resistance to insect herbivores.One important derivative of JA is 12-OH-JA,which is produced by two independent pathways:direct hydroxylation of JA by jasmonate-induced oxygenases(JOXs)or hydrolyzation of 12-OH-JA-Ile.Yet the function of 12-OH-JA in plant-herbivore interactions remains largely unknown.In this study,we silenced four JOX homologs independently in the wild tobacco Nicotiana attenuata by virus-induced gene silencing(VIGS),and found that all four JOX homologs are involved in JA hydroxylation.Simultaneously silencing the four JA hydroxylases in VIGS-NaJOXs plants decreased herbivory-induced 12-OH-JA by 33%,but JA and JA-Ile levels increased by 45%and 30%,respectively,compared to those in control plants.Compared to direct hydroxylation from JA,hydrolyzation from 12-OH-JA-Ile is equally important for herbivory-induced 12-OHJA accumulation:in the 12-OH-JA-Ile deficient irJAR4/6 plants,12-OH-JA decreased 34%.Moreover,VIGSNaJOXs plants exhibited enhanced resistance to the generalist herbivore Spodoptera litura.The poor larval performance was strongly correlated with high levels of several JA-Ile-dependent direct defense metabolites in the VIGS-NaJOXs plants.When we simultaneously silenced all four JA hydroxylases in the JAIle-deficient irJAR4/6 background,the enhanced herbivore resistance diminished,demonstrating that enhanced herbivore resistance resulted from elevated JA-Ile levels.Given that silencing these NaJOX-like genes did not detectably alter plant growth but highly increased plant defense levels,we propose that JOX genes are potential targets for genetic improvement of herbivore-resistant crops. | Jinxiang Tang Dahai Yang Jianqiang Wu Suiyun Chen Lei Wang | 2020 | Plant Diversity2020，42，2： | 1 |
| 6 | EXPERIMENTAL INVESTIGATION OF ELECTRONS IN HELIUM GLOW DISCHARGE显示文摘An experiment dealing with Pauli's exclusion principle was carried out by using a glow discharge device.The main purpose of the experiment is to examine the possibility of existence of anomalous electrons by measuring the characteristic K X-rays of the anode atoms.The electrons in helium glow discharge collected by the metal anode will be captured to the inner shell if they are not identical with the electrons of the anode metal.The experimental results show that the properties of the electrons both in helium glow discharge and metal atom are identical. | TANG Xiaowei CAO Jinxiang LIN Xianghong BIAN Zuhe JIANG Yong | 1990 | Chinese Physics Letters1990，7，7： | 0 |
| 7 | Zero-oxidation state precursor assisted fabrication of highly dispersed and stable Pt catalyst for chemoselective hydrogenation ofα,β-unsaturated aldehydes显示文摘The chemoselective hydrogenation ofα,β-unsaturated aldehydes is a key strategy for the synthesis of fine chemicals.Herein,we developed an efficient method of depositing Pt particles on FeO_(x)/SBA-15.This strategy is dependent on using a platinumdivinyltetramethyldisiloxane complex(Pt^(0)-DVTMS)as the precursor,which we demonstrate can be removed through a H_(2)-treatment under mild conditions.This,in turn,allowed for the synthesis of catalysts with well dispersed Pt particles.The presence of FeO_(x) species also aided Pt dispersion;when coated onto SBA-15,FeO_(x) strongly interacted with dissociated Pt species,inhibiting both Pt aggregation and metal leaching.Using cinnamaldehyde as a modelα,β-unsaturated aldehyde,it was demonstrated that this catalyst was highly selective towards the unsaturated alcohol and no obvious loss in activity was observed over five recycles.This catalyst was determined to be significantly more effective than an analogous catalyst prepared using chloroplatinic acid as a precursor,evidencing the importance of using the Pt0-DVTMS precursor.We corroborate the excellent catalytic performance to highly dispersed Pt-species,whereby Pt0 and Pt^(2+) play a critical role in activating H_(2) and the C=O bond.This research demonstrates that the Pt precursor can have a significant impact on the physicochemical properties and thus,the performance of the final catalyst.It also evidences how metal support interactions can dramatically influence selectivity in such hydrogenation reactions.This novel catalyst preparation protocol,using a DVTMS ligand for Pt impregnation,offers a facile approach to the design of multi-component heterogeneous catalysts. | Yu Liang Mark Douthwaite Xiaoyang Huang Binbin Zhao Qiong Tang Lei Liu Jinxiang Dong | 2023 | Nano Research2023，16，5： | 0 |
| 8 | Alkyl-tetralin base oils synthesized from coal-based chemicals and evaluation of their lubricating properties显示文摘Naphthenic base oil is an important lubricating base oil and very scarce in the global petroleum resources.Herein,a series of alkylated tetralin fluids similar to naphthenic base oils were produced by the alkylation of tetralin and a-olefins(n-hexene,n-octene,n-decene)with ionic liquid Et_3NHCl/AlCl_(3)as the catalyst,where the applied raw materials are totally derived from the coal chemical industry.The product composition could be controlled by adjusting the feeding ratio of tetralin and olefin.The synthetic fluids were evaluated as lubricating base oils to reveal the structure-property correlations.Their principal physicochemical and tribological properties depend on the chain-length of a-olefins and the number of alkyl groups onto the aromatic rings.Bis-(octyl-or decyl-)alkyl tetralin exhibited good properties in terms of viscosity,thermo-oxidation stability and pour point,as well as friction-reducing and anti-wear performance,showing great potential for producing naphthenic base synthetic oils from coal-based chemicals. | Chen Chen Qiong Tang Hong Xu Mingxing Tang Xuekuan Li Lei Liu Jinxiang Dong | 2023 | Chinese Journal of Chemical Engineering2023，58，6： | 0 |
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